Restructured the folder structure in the library and test targets.

Library/Sources/Internal/Extensions/Bundle+Conformances.swift

@@ -0,0 +1,5 @@
+import Foundation
+
+// MARK: - BundleServicing
+
+extension Bundle: BundleServicing {}

Library/Sources/Internal/Extensions/URL+Extensions.swift

@@ -0,0 +1,35 @@
+import Foundation
+
+extension URL {
+    
+    // MARK: Initialisers
+    
+    init(at filePath: String) {
+        if #available(macOS 13.0, *) {
+            self = URL(filePath: filePath)
+        } else {
+            self = URL(fileURLWithPath: filePath)
+        }
+    }
+    
+    // MARK: Computed
+    
+    var pathString: String {
+        if #available(macOS 13.0, *) {
+            path(percentEncoded: true)
+        } else {
+            path
+        }
+    }
+    
+    // MARK: Functions
+    
+    func appendingPath(_ path: String) -> URL {
+        if #available(macOS 13.0, *) {
+            appending(path: path)
+        } else {
+            appendingPathComponent(path)
+        }
+    }
+    
+}